Now, let me make this perfectly clear. I love thread drift. I think it's inherent in threads in the first place. I find it incredibly tiresome when the inevitable cry of thread drift, usually with a plea for moderators to close the thread, comes from the self appointed policemen of pure and polarised discussion.
I just wanted to point out that someone asked a question about autopilots on modern fighters and within 2 pages we were discussing Tornado wing sweep and BTRs. Where to next I wonder? Give it two more pages and we'll be discussing our favourite kebab vans.